Claude Fable 5 vs GPT-5.5

Anthropic · OpenAI — Interactive pricing comparison

Input tokens per request4K

Output tokens per request2K

Requests per day100

Anthropic

Input$10/1M

Output$50/1M

Cache read$1/1M

Cost per request$0.140

Monthly estimate$420

Max input1.0M

Max output128K

OpenAI

Input$5/1M

Output$30/1M

Cache read$0.5/1M

Cost per request$0.080

Monthly estimate$240

Max input1.1M

Max output128K

GPT-5.5 is 43% cheaper at this usage

GPT-5.5 has a larger context window

Capabilities